## Overview of G3T13AH-R The **G3T13AH-R** is a specific model of a subminiature process-sealed toggle switch manufactured by **NKK Switches**. It belongs to the **G3T series**, which is widely recognized for its high reliability in logic-level applications and its ability to withstand harsh soldering and cleaning processes. --- ### Technical Specifications The following table outlines the primary electronic and mechanical characteristics of the G3T13AH-R: | Feature | Specification | | :--- | :--- | | **Switch Type** | Toggle Switch | | **Circuit Configuration** | SPDT (Single Pole Double Throw) | | **Switch Function** | ON - OFF - (ON) *Bracketed denotes momentary* | | **Contact Rating** | 0.4VA maximum @ 28V AC/DC maximum | | **Mounting Type** | Surface Mount (SMD) - Right Angle | | **Terminal Type** | Gull Wing (Surface Mount) | | **Sealing** | Process Sealed (Washable) | | **Operating Temp Range** | -30°C to +85°C | --- ### Key Electronic Components & Design Features #### 1. Contact Mechanism The G3T13AH-R utilizes a **STC (Sliding Twin Crossbar)** contact mechanism. This design is crucial for: * **Self-cleaning:** Every actuation wipes the contact surfaces, removing oxides and dust. * **Reliability:** It ensures a highly stable connection for low-level signals (Logic Level), which are often prone to intermittent failure in standard switches. #### 2. Process Sealing The switch is constructed with a heat-resistant resin for the base and a rubber O-ring inside the bushing. This allows the part to be: * Subjected to **automated wave or infrared reflow soldering**. * Fully immersed in cleaning solvents to remove flux without compromising the internal electronic contacts. #### 3. Terminal Design The "R" in the suffix typically denotes the packaging (Tape & Reel) or a specific orientation. The terminals are **Gull Wing** shaped, designed specifically for surface mount technology (SMT) to provide strong mechanical adhesion to the PCB while maintaining a small footprint. #### 4. Material Composition * **Contacts:** Gold-plated over nickel or brass. Gold is used to prevent oxidation at the low voltages/currents (0.4VA) where this switch operates. * **Housing:** High-temperature PPS (Polyphenylene Sulfide), capable of withstanding the heat of SMT production lines. --- ### Applications Due to its subminiature size and high reliability, the G3T13AH-R is commonly found in: * Handheld communication devices. * Medical instrumentation. * Industrial control panels (as a reset or selection switch). * Test and measurement equipment. ---